Read Sony XVM-H6 Service Manual online
13
13
XVM-H6
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
for schematic diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
%
: indicates tolerance.
•
f
: internal component.
•
C
: panel designation.
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
Pattern face side: Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A)
(Side A)
parts face are indicated.
•
A
: B+ Line.
•
B
: B– Line.
•
H
: adjustment for repair.
• J18 of XVM-H6D is connected to Connection Box with a
monitor cable.
Power voltage is dc 14.4 V from ACC cord of the Connec-
tion Box and fed with regulated dc power supply.
Power voltage is dc 14.4 V from ACC cord of the Connec-
tion Box and fed with regulated dc power supply.
• J18 of XVM-H6D is connected to Connection Box with a
monitor cable.
Voltage and waveforms are measured at input the color
bar signal from the Connection Box.
Voltage and waveforms are measured at input the color
bar signal from the Connection Box.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
g
: VIDEO
for printed wiring boards:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
: Pattern from the side which enables seeing.
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
• Waveforms (DISPLAY Board)
1
U501
0
(OSC2/CLKOUT)
0.2V/DIV 50nsec/DIV
4MHz
2
Q401
C
10V/DIV 10µsec/DIV
3
U506
9
(XOUT)
2V/DIV 50nsec/DIV
4MHz
qa
U600
wf
(B_OUT)
1V/DIV 20µsec/DIV
2H
qs
U600
eh
(SYN_S)
0.2V/DIV 20µsec/DIV
H
0.4Vp-p
26.5µsec
36Vp-p
5.4Vp-p
4.0Vp-p
0.7Vp-p
4
U503
7
(XD)
1V/DIV 50nsec/DIV
0.13µsec
5
U1
qf
(X)
0.5V/DIV 20µsec/DIV
6
U600
3
(V_IN)
0.2V/DIV 20µsec/DIV
H
qd
U2
ta
(VIH)
1V/DIV 2msec/DIV
V
qf
U2
th
(HOOUT1)
1V/DIV 20µsec/DIV
H
qg
U2
tk
(VSYNC)
1V/DIV 2msec/DIV
V
4.0Vp-p
H
0.7Vp-p
0.35Vp-p
3.0Vp-p
3.0Vp-p
3.0Vp-p
7
U600
5
(C_IN)
0.5V/DIV 20µsec/DIV
H
8
U600
qh
(VCO_IN)
0.2V/DIV 0.1µsec/DIV
9
U600
ql
(R_OUT)
1V/DIV 20µsec/DIV
2H
qj
U201
7
(OUT1)
5V/DIV 5µsec/DIV
15µsec
qh
U2
yd
(POL2)
1V/DIV 20µsec/DIV
2H
qk
Q301
C
10V/DIV 5µsec/DIV
15µsec
0.9Vp-p
3.58MHz
0.4Vp-p
4.0Vp-p
10.6Vp-p
3.2Vp-p
35Vp-p
0
U600
wa
(G_OUT)
1V/DIV 20µsec/DIV
2H
4.0Vp-p
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